**Escalation in the Yemen conflict has intensified cross-border strikes but highlights barriers to a Houthi ground incursion into Saudi Arabia.** Since the 2022 truce collapsed in mid-2026, Houthis seized key Red Sea coastal areas and the Bab al-Mandab Strait in September, prompting a Saudi-backed Yemeni government counteroffensive in early October to reclaim territory. In response, Houthis launched repeated missile and drone attacks on Saudi targets, including multiple strikes on Riyadh’s King Khalid International Airport (killing at least 13 and injuring hundreds), Aramco facilities in Dhahran and elsewhere, and airports in Jizan and Abha. Saudi-led coalition forces have conducted airstrikes on Houthi-held sites in Yemen while intercepting many projectiles, though some caused damage and flight disruptions. Houthis have mobilized additional forces and equipment in Saada province near the border, with reports of preparations that could support offensive action. However, Saudi Arabia maintains strong border defenses, air superiority, and alliances (including recent pacts with Turkey and Pakistan), while Houthi ground advances have historically faced high costs. Trader assessments reflect the distinction between sustained long-range strikes—now a core pressure tactic—and the higher threshold for confirmed ground entry, amid ongoing fighting and limited diplomatic off-ramps.